Question

Which of the following is/are an assumption(s) made in the theory of Simple Bending?
1. The material of the beam that is subjected to bending is homogenous
2. The effect of shear stresses is neglected
3. The beams have a symmetrical crosssection and they are subjected to bending only in the plane of symmetry
4. All of the options

Answer 1

Correct Answer - Option 4 : All of the options

Explanation:

Following are the assumptions made in the theory of Simple Bending:

• The material of the beam is homogenous and isotropic.
• The beam is initially straight, and all the longitudinal fibres bend in circular arcs with a common centre of curvature.
• Members have symmetric cross-sections and are subjected to bending in the plane of symmetry.
• The beam is subjected to pure bending and the effect of shear is neglected.
• Plane sections through a beam, taken normal to the axis of the beam remain plane after the beam is subjected to bending.
• The radius of curvature is large as compared to the dimensions of the beam.